lto-object.c (lto_obj_begin_section): In the event that pointer sizes aren't powers of two...

* lto-object.c (lto_obj_begin_section): In the event that pointer
sizes aren't powers of two, choose a more suitable alignment
than (unsigned)(-1).

From-SVN: r216350

gcc/lto/ChangeLog

+2014-10-16  DJ Delorie  <dj@redhat.com>
+
+	* lto-object.c (lto_obj_begin_section): In the event that pointer
+	sizes aren't powers of two, choose a more suitable alignment
+	than (unsigned)(-1).
+
 2014-10-14  DJ Delorie  <dj@redhat.com>
 
 	* lto-lang.c (lto_build_c_type_nodes): Check intN types for

gcc/lto/lto-object.c

@@ -338,7 +338,7 @@ lto_obj_begin_section (const char *name)
 	      && lo->sobj_w != NULL
 	      && lo->section == NULL);
 
-  align = exact_log2 (POINTER_SIZE / BITS_PER_UNIT);
+  align = ceil_log2 (POINTER_SIZE_UNITS);
   lo->section = simple_object_write_create_section (lo->sobj_w, name, align,
 						    &errmsg, &err);
   if (lo->section == NULL)